<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>工程首页</title>
</head>
<body>
<a href="/login.html">登录</a>
<br>
<h2>商品管理系统</h2>
<a href="/insert.html">添加商品</a>
<a href="/select">商品列表</a>
<a href="/update.html">修改商品</a>
</body>
</html>